name = "zhangsan";
print(name);
messages = "Hello Eric,would you like to learn some Python today?";
print(messages);
print(name.title());
print(name.upper());
print(name.lower());
messagess = "Albert Einstein once said, \"A person who never\nmade a mistake never tried anything new.\"";
print(messagess);
famous_person="li si";
msg = f"{famous_person.title()}: {messagess}";
print(msg);
first_name = " wang wu ";
print("name:\n"+first_name.rstrip());
print("name:\t"+first_name.lstrip());
print("name:" + first_name.strip());